MARTHA’S VINEYARD, Mass. (WHDH) -- Five people were injured after a two- car crash in Martha’s Vineyard on Wednesday afternoon, according to state police.

Among the five injured, three were flown by helicopter to Boston hospitals with serious injuries, according to state police.

Police say the crash occurred at 2:20 p.m. on Barnes Road Extension, near the airport Mobil station, and involved two vehicles.

Police say the Jeep with four people inside attempted a U-turn and was broadsided by a Volkswagen Taureg operated by a Cambridge man, causing a 21-year-old Berlin, N.H., woman  to be ejected from the Jeep’s back seat and causing injuries to the four other people involved.

Police say the Berlin woman who was ejected was flown to Brigham and Women's Hospital by medical helicopter with life-threatening injuries. A second back-seat Jeep passenger, a Dummer, N.H., man in his early 20s, also suffered potential life-threatening injuries and was also transported by medical helicopter to Beth Israel Hospital.

According to police, a third victim, a 52-year-old Dummer, N.H., woman, who was a front seat passenger in Jeep, also suffered serious injuries and was flown to a Boston hospital.

The Jeep's driver, a 52-year-old Dummer, N.H., man, and the Taureg's driver, a 19-year-old Cambridge man, were transported by ambulance to Martha's Vineyard Hospital. Their injuries are not considered life-threatening, according to police.

Several police units are investigating the crash.